1.1.1

Documentation only: no code changed between 1.1.0 and this.

UPGRADE.md ships with the package, and the section covering 1.0 to 1.1 was written after 1.1.0 was tagged - so an application installing 1.1.0 got a guide that stopped at 1.0. This tag carries it.

It matters for the laravel-zipstream-upgrade Boost skill, which reads the guide from vendor/exeque/laravel-zipstream/UPGRADE.md rather than from the web.